Development and Testing of End-of-Line (EOL) Tester for Diesel Engine 2023-01-5058

Decades ago, like the 1990s automobile industry, the off-highway industry was purely recognized as a mechanical entity. In the mechanical system, accuracy and troubleshooting of faults were significant concerns. Additionally, the continuous stringent emission norms by the government call for the adaptation of the aftertreatment and DeNOx led to more complexity and challenges. To meet the government emission regulation and product performance, thorough functionality testing of manufactured units was crucial. For this purpose, EOL/diagnostics testers are developed. Diagnostic protocol CAN establish the connection between ECU and tester due to its robustness and data handling capabilities. This paper aims to develop and test the end-of-line (EOL) tester for off-highway diesel engines. The communication between the tester and ECU will be over UDSonCAN, conforming to standard ISO14229. This tester will cover the synchronization of various components used to assemble the engine and maintain a consumption record. The vital tester implemented the following roles: communication, reading diagnostic trouble code (DTC), data measurement, data logging, and programming data with a friendly and compatible interface. Also, the tool will distinguish nonfunctional units, reduce the rejection rate, and help to maximize productivity by performing appropriate diagnostic checks in case of any faulty situation. The tester will ease the aftertreatment and DeNOx testing.